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The current ages of Sonali and Monali are in the ratio 5 : 3. Five years from now, their ages will be in the ratio 10 : 7. Then, Monali’s current age is :
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- 5 years
- 3 years
- 9 years
- 15 years
Correct Option: C
Sonali’s present age = 5x years
Monali’s present age = 3x years
According to the question,
After 5 years,
| = | ||
| 3x + 5 | 7 |
| ⇒ | = | ||
| 3x + 5 | 7 |
⇒ 7x + 7 = 6x + 10
⇒ 7x – 6x = 10 – 7
⇒ x = 3
∴ Monali’s present age = 3x
= 9 years
